external image cacti.jpg
http://www.mrfs.net/trips/2004/Italy/Cinque_Terre/cacti.jpg

Cacti depend on chlorophyll in the outer tissue of their skin and stems to conduct photsythesis to make food.


external image SIA0336.jpg
http://www.scienceviews.com/plants/images/SIA0336.jpg

The Utah Juniper uses photosynthesis to produce food.


external image bacteria.jpg
http://blogs.discovermagazine.com/discoblog/files/2008/04/bacteria.jpg



In the desert, bacteria use chemosynthesis to produce food.



external image athletes-foot-fungus-522312-sw.jpg
http://wortix.files.wordpress.com/2009/02/athletes-foot-fungus-522312-sw.jpg




In the desert fungus use chemosynthesis


desert_fungus.jpg
http://farm4.static.flickr.com/3477/3817328753_080f9c99bb.jpg